Main-event heavyweight fighters Junior Dos Santos (15-1 MMA, 9-0 UFC) and Cain Velasquez (10-1 MMA, 8-1 UFC), fighting in a championship rematch from their first title fight at UFC on FOX 1 in November 2011, came in at 239 pounds and 240, respectively.

Dos Santos took the title from Velasquez in their first meeting, then defended it in May with a second-round TKO of Frank Mir. Velasquez rebounded from dropping the title to Dos Santos in his first defense with a brutal first-round TKO of Antonio “Bigfoot” Silva, also at UFC 146 in May.

Boetsch (186) and Philippou (186) each seek their fifth straight victories. Philippou took the fight on short notice after teammate Chris Weidman had to pull out earlier this fall with an injury. Belcher (186) and Okami (184) fight in a rematch more than six years in the making after Okami took a unanimous decision from Belcher at UFC 62 in each of the fighters’ first bouts in the UFC. And Leben (185) returns from a yearlong suspension to meet Strikeforce crossover Brunson (185), who makes his UFC debut.

Friday’s event took place at MGM Grand Garden Arena in Las Vegas. Saturday’s show takes place at the same venue with a main card airing on pay-per-view (10 p.m. ET) following prelims on FX (8 p.m.) and Facebook (6:35 p.m.).

For a full rundown of the proceedings, check out our UFC 155 weigh-in results post. Additionally, check out images of all the fighters below.